Dissipative and thermal aspects in cyclic loading of additive manufactured AISI 316L

Luca Santoro, Raffaella Sesana, Johannes Diller, Christina Radlbeck, Martin Mensinger

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

1 Zitat (Scopus)

Abstract

This study presents a comprehensive understanding of the fatigue behavior of 316L stainless steel specimens produced using the laser powder bed fusion (PBF-LB/M) method. The investigation has been conducted through a multifaceted approach that includes surface roughness analysis, density measurements, microstructural examination, fatigue testing, strain measurements, and thermographic analysis. Thermographic data processing models, i.e. the bi-power law (TCM-modified) model and the TCM method, are applied to fatigue test results of standard samples to evaluate fatigue limit values. The fatigue limit of the samples was estimated using the Murakami Method (MM), Constant Amplitude Loading (CAL) and Step Loading (SL) tests. The proposed methodology allows exploration of the entire stress level range within a single test, which could allow evaluation of the fatigue limit of components within only one test. This study is the starting point for a rapid evaluation method for estimating the fatigue limit using thermography, offering a cost-effective, time-efficient, and non-destructive means of assessing the fatigue performance of materials produced using additive manufacturing processes.

OriginalspracheEnglisch
Aufsatznummer108446
FachzeitschriftEngineering Failure Analysis
Jahrgang163
DOIs
PublikationsstatusVeröffentlicht - Sept. 2024

Fingerprint

Untersuchen Sie die Forschungsthemen von „Dissipative and thermal aspects in cyclic loading of additive manufactured AISI 316L“. Zusammen bilden sie einen einzigartigen Fingerprint.

Dieses zitieren